this tells the ASA that any traffic received on the outside interface for 22.214.171.124 should be translated to 192.168.5.1 and forwarded to the inside. If you disable proxy-arp on the outside interface then the above would stop working because the ASA can no longer respond for arp's to the public IP address.
Apologies if i didn't explain correctly. If you have any static commands that reference either the outside or dmz interfaces then there will be an issue removing. You can only remove it where the firewall does not have to respond to an arp for that IP address. The interfaces you are concerned with are the second one in the static command ie.
static (inside,outside) ....
removing proxy-arp on the outside would cause problem
static (outside,inside) ....
wouldn't cause a problem removing proxy-arp on outside
Usually the outside interface is the one where you need proxy-arp.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...